[INFO] cloning repository https://github.com/AirZED/checkers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AirZED/checkers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirZED%2Fcheckers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirZED%2Fcheckers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 858393b64af1c6fa956e50c7f9cd68106585ae7a
[INFO] checking AirZED/checkers against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAirZED%2Fcheckers" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AirZED/checkers
[INFO] finished tweaking git repo https://github.com/AirZED/checkers
[INFO] tweaked toml for git repo https://github.com/AirZED/checkers written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AirZED/checkers on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AirZED/checkers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded error-chain v0.10.0
[INFO] [stderr]   Downloaded mut_static v5.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 216ce5882f17832ab47e02516458798061d1f0db44f2de5d8ddac065baa413a7
[INFO] running `Command { std: "docker" "start" "-a" "216ce5882f17832ab47e02516458798061d1f0db44f2de5d8ddac065baa413a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "216ce5882f17832ab47e02516458798061d1f0db44f2de5d8ddac065baa413a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "216ce5882f17832ab47e02516458798061d1f0db44f2de5d8ddac065baa413a7", kill_on_drop: false }`
[INFO] [stdout] 216ce5882f17832ab47e02516458798061d1f0db44f2de5d8ddac065baa413a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da8f2bb5b8c5b1c71196a0e1d28aa3b2a483a6b20b84ea1bf7b9c07791b3812c
[INFO] running `Command { std: "docker" "start" "-a" "da8f2bb5b8c5b1c71196a0e1d28aa3b2a483a6b20b84ea1bf7b9c07791b3812c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.100
[INFO] [stderr]    Compiling log v0.4.25
[INFO] [stderr]    Compiling rustversion v1.0.19
[INFO] [stderr]    Compiling wasm-bindgen v0.2.100
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking error-chain v0.10.0
[INFO] [stderr]     Checking mut_static v5.0.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.100
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.100
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.100
[INFO] [stderr]     Checking checkers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/game/game.rs:216:16
[INFO] [stdout]     |
[INFO] [stdout] 216 |             if (midpiece.unwrap().color == piece.color) {
[INFO] [stdout]     |                ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 216 -             if (midpiece.unwrap().color == piece.color) {
[INFO] [stdout] 216 +             if midpiece.unwrap().color == piece.color {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/game/game.rs:216:16
[INFO] [stdout]     |
[INFO] [stdout] 216 |             if (midpiece.unwrap().color == piece.color) {
[INFO] [stdout]     |                ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 216 -             if (midpiece.unwrap().color == piece.color) {
[INFO] [stdout] 216 +             if midpiece.unwrap().color == piece.color {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fx`
[INFO] [stdout]    --> src/game/game.rs:254:24
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let Coordinate(fx, fy) = *from;
[INFO] [stdout]     |                        ^^ help: if this is intentional, prefix it with an underscore: `_fx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `valid_move` is never used
[INFO] [stdout]    --> src/game/game.rs:248:8
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl GameEngine {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 248 |     fn valid_move(&mut self, piece: &GamePiece, from: &Coordinate, to: &Coordinate) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/game/game.rs:62:32
[INFO] [stdout]    |
[INFO] [stdout] 62 |         if x <= 7 && y <= 7 && x >= 0 && y >= 0 {
[INFO] [stdout]    |                                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/game/game.rs:62:42
[INFO] [stdout]    |
[INFO] [stdout] 62 |         if x <= 7 && y <= 7 && x >= 0 && y >= 0 {
[INFO] [stdout]    |                                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fromX` should have a snake case name
[INFO] [stdout]   --> src/game/game.rs:75:24
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let Coordinate(fromX, fromY) = mv.from;
[INFO] [stdout]    |                        ^^^^^ help: convert the identifier to snake case: `from_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fromY` should have a snake case name
[INFO] [stdout]   --> src/game/game.rs:75:31
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let Coordinate(fromX, fromY) = mv.from;
[INFO] [stdout]    |                               ^^^^^ help: convert the identifier to snake case: `from_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `toX` should have a snake case name
[INFO] [stdout]   --> src/game/game.rs:76:24
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let Coordinate(toX, toY) = mv.to;
[INFO] [stdout]    |                        ^^^ help: convert the identifier to snake case: `to_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fx`
[INFO] [stdout]    --> src/game/game.rs:254:24
[INFO] [stdout]     |
[INFO] [stdout] 254 |         let Coordinate(fx, fy) = *from;
[INFO] [stdout]     |                        ^^ help: if this is intentional, prefix it with an underscore: `_fx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `toY` should have a snake case name
[INFO] [stdout]   --> src/game/game.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let Coordinate(toX, toY) = mv.to;
[INFO] [stdout]    |                             ^^^ help: convert the identifier to snake case: `to_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/board/board.rs:37:29
[INFO] [stdout]    |
[INFO] [stdout] 37 |         x <= 7 && y <= 7 && x >= 0 && y <= 0
[INFO] [stdout]    |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `valid_move` is never used
[INFO] [stdout]    --> src/game/game.rs:248:8
[INFO] [stdout]     |
[INFO] [stdout] 29  | impl GameEngine {
[INFO] [stdout]     | --------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 248 |     fn valid_move(&mut self, piece: &GamePiece, from: &Coordinate, to: &Coordinate) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/game/game.rs:62:32
[INFO] [stdout]    |
[INFO] [stdout] 62 |         if x <= 7 && y <= 7 && x >= 0 && y >= 0 {
[INFO] [stdout]    |                                ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/game/game.rs:62:42
[INFO] [stdout]    |
[INFO] [stdout] 62 |         if x <= 7 && y <= 7 && x >= 0 && y >= 0 {
[INFO] [stdout]    |                                          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fromX` should have a snake case name
[INFO] [stdout]   --> src/game/game.rs:75:24
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let Coordinate(fromX, fromY) = mv.from;
[INFO] [stdout]    |                        ^^^^^ help: convert the identifier to snake case: `from_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `fromY` should have a snake case name
[INFO] [stdout]   --> src/game/game.rs:75:31
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let Coordinate(fromX, fromY) = mv.from;
[INFO] [stdout]    |                               ^^^^^ help: convert the identifier to snake case: `from_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `toX` should have a snake case name
[INFO] [stdout]   --> src/game/game.rs:76:24
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let Coordinate(toX, toY) = mv.to;
[INFO] [stdout]    |                        ^^^ help: convert the identifier to snake case: `to_x`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `toY` should have a snake case name
[INFO] [stdout]   --> src/game/game.rs:76:29
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let Coordinate(toX, toY) = mv.to;
[INFO] [stdout]    |                             ^^^ help: convert the identifier to snake case: `to_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/board/board.rs:37:29
[INFO] [stdout]    |
[INFO] [stdout] 37 |         x <= 7 && y <= 7 && x >= 0 && y <= 0
[INFO] [stdout]    |                             ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.43s
[INFO] running `Command { std: "docker" "inspect" "da8f2bb5b8c5b1c71196a0e1d28aa3b2a483a6b20b84ea1bf7b9c07791b3812c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da8f2bb5b8c5b1c71196a0e1d28aa3b2a483a6b20b84ea1bf7b9c07791b3812c", kill_on_drop: false }`
[INFO] [stdout] da8f2bb5b8c5b1c71196a0e1d28aa3b2a483a6b20b84ea1bf7b9c07791b3812c
